HP Caliper User Guide Release 5.5 (5900-2351, August 2012)

FPMIN Floating-Point Parallel Minimum: 1 operation
FPMAX Floating-Point Parallel Maximum: 2 operations
FPAMIN Floating-Point Parallel Absolute Minimum: 2 operations
FPAMAX Floating-Point Parallel Absolute Maximum: 2 operations
FPCMP Floating-Point Parallel Compare: 2 operations
FPCVT.fx Convert Parallel Floating-Point to Integer: 2 operations
FNMA Floating-Point Negative Multiply Add: 2 operations
FRCPA Floating-Point Reciprocal Approximation: 1 operation
FRSQRTA Floating-Point Reciprocal Square Root Approximation: 1 operation
FPNMA Floating-Point Parallel Negative Multiply Add: 4 operations
FPRCPA Floating-Point Parallel Reciprocal Approximation: 2 operations
FPRSQRTA Floating-Point Parallel Reciprocal Square Root Approximation: 2 operations
Metrics Available from this Measurement
The following metrics are available from this event set. These descriptions do not take into account
any command-line options you might use.
The metrics are:
• Instr Retired
This is the total number of instructions retired during the sample interval, including nop and
predicated off instructions.
• Finstr Per Instr
This is the total fraction of floating-point instructions retired among all instructions during the
sample interval, including nop and predicated off instructions.
• Flops Per Instr
This is the ratio of floating-point operations (not instructions) and all instructions retired, including
nop and predicated off instructions.
• Flops Per Finstr
This is the ratio of floating-point operations (not instructions) and floating-point instructions
retired, including nop and predicated off instructions.
• Flush To Zero
This is the total number of flush to zero events (denormalized numbers) that were observed
during the sampling interval.
• SIR
This is the total number of safe instruction recognition (SIR) stalls observed during the sample
interval. The count includes both false (stall only, no trap taken) stalls and true (SWFA trap
taken) stalls.
• FP Events /Sec: FOPS
This is the number of floating-point operations (not instructions) that are executed per second.
• FP Events/Sec: zero flush
This is the number of flush to zero events that occur per second.
• FP Events/Sec: SIR Event: total
This is the total number of SIR stalls observed per second. The count includes both false (stall
only, no trap taken) stalls and true (SWFA trap taken) stalls.
• FP Events/Sec: SIR Event: stall
This is the total number of SIR false stalls (stall only, no trap taken) observed per second.
242 Event Set Descriptions for CPU Metrics